Supplement to: Deroo, Gerard; Herbin, Jean-Paul; Roucaché, J; Boudou, J P; Robert, P; Jardiné, S; Marestang, P (1982): Geochemical and optical study of organic matter in some Pleistocene and Pliocene sediment from the Gulf of California: Leg 64, Holes 474 to 481A. In: Curray, JR; Moore, DG; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 64, 855-864, https://doi.org/10.2973/dsdp.proc.64.129.1982